公开(公告)号：US20160048234A1

公开(公告)日：2016-02-18

申请号：US14461977

申请日：2014-08-18

Applicant: STMicroelectronics Asia Pacific Pte Ltd

Inventor： Praveesh Chandran ,  Baranidharan Karuppusamy ,  Giuseppe Noviello ,  Chee Weng Cheong ,  Leonard Dinu ,  Dianbo Guo ,  Kien Beng Tan ,  Chaochao Zhang

IPC: G06F3/044 ,  G06F3/0354

CPC classification number: G06F3/044 ,  G06F3/03545 ,  G06F3/0383 ,  G06F3/0416

Abstract: An active stylus is capacitively coupled to a capacitive touch panel for communication. The active stylus operates in a wait mode to receive initial communications from the panel. In response to such receipt, the active stylus synchronizes to a repeating communications frame implementing time division multiplexing. Communications from the active stylus to the panel include: information communications; synchronization communications and communications specific for columns and/or rows of the panel. Communications from the panel to the active stylus may be addressed uniquely to the stylus or commonly to a group of styluses.

Abstract translation: 有源触笔电容耦合到用于通信的电容式触摸面板。 活动的笔在等待模式下操作以从面板接收初始通信。 响应于这样的接收，活动触针与实现时分复用的重复通信帧同步。 从活动手写笔到面板的通信包括：信息通信; 专用于面板的列和/或行的同步通信和通信。 从面板到活动手写笔的通信可以唯一地被寻址到手写笔，或者通常被发送到一组触控笔。

公开(公告)号：US09246485B2

公开(公告)日：2016-01-26

申请号：US13739112

申请日：2013-01-11

Applicant: STMicroelectronics Asia Pacific Pte. Ltd.

Inventor： Chee Yu Ng ,  Mythreyi Nagarajan

IPC: H03K17/96 ,  G06F3/044

CPC classification number: H03K17/9622 ,  G06F3/044 ,  H03K2017/9602

Abstract: A single ITO layer design for a touchscreen panel incorporates a matrix of sensor cells formed from a single ITO layer of capacitive sensor pads, sensor bars, force lines and sense lines. Columns of multiplexed force lines are connected to rows of sensor pads to form force trees such that the force line of the end pair of sensor pads has a wide track, with the force lines of each subsequent pair of sensor pads having a reduced track width. Disposed between the columns of force trees, the matrix of sensor cells also includes columns of sensor bars connected to control circuitry via sense lines. The control circuitry applies a signal to the force trees to generate capacitance between rows of sensor pads and adjacent sensor bars. The control circuitry senses changes in the capacitance and resolves the location of a user touch in the matrix of sensor cells.

Abstract translation: 用于触摸屏面板的单个ITO层设计包括由电容式传感器焊盘，传感器棒，强制线和感测线的单个ITO层形成的传感器单元矩阵。 复合力线的列连接到传感器垫的行以形成力树，使得传感器焊盘的端对对的力线具有宽的轨迹，每个后续传感器对的力线具有减小的轨道宽度。 设置在力树柱之间，传感器单元的矩阵还包括通过感测线连接到控制电路的传感杆的列。 控制电路向力树施加信号以在传感器垫和相邻传感器条之间的行之间产生电容。 控制电路感测电容的变化，并且解决用户触摸传感器单元矩阵中的位置。

公开(公告)号：US09241153B2

公开(公告)日：2016-01-19

申请号：US13856342

申请日：2013-04-03

Applicant: STMicroelectronics Asia Pacific Pte. Ltd.

Inventor： Lucas Hui

IPC: G02B27/22 ,  H04N13/04 ,  H04N13/00 ,  G06T5/00 ,  G06T5/50

CPC classification number: H04N13/334 ,  G06T5/008 ,  G06T5/50 ,  G06T2207/10021 ,  G06T2207/10024 ,  H04N13/122 ,  H04N13/133

Abstract: A system adjusts contrast of an anaglyph image and includes a contrast adjuster processor that generates a contrast-adjusted first luma signal and second luma signal and a contrast-adjusted third luma signal from a first input image signal and second input image signal. An upstream summing node determines a first difference between the first luma signal and third luma signal and a downstream summing node subtracts the first difference from the first signal component of the first input signal. A fine adjuster circuit receives a signal for the first difference and applies a fine adjustment as a gain adjustment, an offset adjustment, and a horizontal and vertical shift.

Abstract translation: 系统调整浮雕图像的对比度，并且包括对比度调节器处理器，其从第一输入图像信号和第二输入图像信号产生对比度调整的第一亮度信号和第二亮度信号以及对比度调整的第三亮度信号。 上游求和节点确定第一亮度信号和第三亮度信号之间的第一差值，下游求和节点从第一输入信号的第一信号分量中减去第一差值。 精细调节器电路接收第一差分的信号，并且作为增益调整，偏移调整以及水平和垂直移位进行微调。

公开(公告)号：US09240908B2

公开(公告)日：2016-01-19

申请号：US13284890

申请日：2011-10-29

Applicant: Muralidhar Karthik ,  George A. Vlantis

Inventor： Muralidhar Karthik ,  George A. Vlantis

IPC: H04L27/00 ,  H04L25/02 ,  H04L25/03 ,  H04L27/26

CPC classification number: H04L25/022 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/03821 ,  H04L27/2601

Abstract: In an embodiment, a transmitter includes first and second transmission paths. The first transmission path is configurable to generate first pilot clusters each including a respective first pilot subsymbol in a first cluster position, and the second transmission path is configurable to generate second pilot clusters each including a respective second pilot subsymbol in a second cluster position such that a vector formed by the first pilot subsymbols is orthogonal to a vector formed by the second pilot subsymbols. For example, where such a transmitter transmits simultaneous orthogonal-frequency-division-multiplexed (OFDM) signals (e.g., MIMO-OFDM signals) over respective channels that may impart inter-carrier interference (ICI) to the signals due to Doppler spread, the pattern of the pilot symbols that compose the pilot clusters may allow a receiver of these signals to use a recursive algorithm, such as a Vector State Scalar Observation (VSSO) Kalman algorithm, to estimate the responses of these channels.

Abstract translation: 在一个实施例中，发射机包括第一和第二传输路径。 第一传输路径可配置为产生第一导频簇，每个导频簇包括在第一簇位置中的相应的第一导频子符号，并且第二传输路径可配置为生成第二导频簇，每个导频簇包括第二簇位置中的相应的第二导频子符号，使得 由第一导频子符号形成的向量与由第二导频子符号形成的向量正交。 例如，在这种发射机通过可能由于多普勒扩展而给予信号的载波间干扰（ICI）的相应信道上发射同时正交频分复用（OFDM）信号（例如，MIMO-OFDM信号）的情况下， 构成导频簇的导频符号的模式可以允许这些信号的接收机使用诸如矢量状态标量观测（VSSO）卡尔曼算法的递归算法来估计这些信道的响应。

公开(公告)号：US20150317008A1

公开(公告)日：2015-11-05

申请号：US14269295

申请日：2014-05-05

Applicant: STMicroelectronics Asia Pacific Pte Ltd

Inventor： Praveesh Chandran ,  Chee Yu Ng

IPC: G06F3/044 ,  G06F3/041 ,  G06F1/16

CPC classification number: G06F3/044 ,  G06F3/0416 ,  G06F2203/04101

Abstract: A capacitive touch panel includes a first sensor pattern and second sensor pattern. The first sensor pattern supports mutual-capacitance detection and the second sensor pattern supports self-capacitance detection. The first sensor pattern includes row conductors and column conductors which intersect each other at mutual-capacitance sensing locations. The second sensor pattern includes island conductors. The island conductors are grouped in clusters of conductors, each cluster providing a self-capacitance sensing location. Control circuitry coupled to the first and second sensor patterns functions to make touch/hover position detections by sensing changes in capacitance at the mutual-capacitance and self-capacitance nodes. The row and column conductors include openings, and the island conductors are positioned in vertical alignment with corresponding openings in the conductors.

Abstract translation: 电容式触摸面板包括第一传感器图案和第二传感器图案。 第一传感器模式支持互电容检测，第二传感器模式支持自电容检测。 第一传感器图案包括在互电容感测位置彼此相交的行导体和列导体。 第二传感器图案包括岛状导体。 岛导体被分组成导体簇，每个簇提供自电容感测位置。 耦合到第一和第二传感器图案的控制电路用于通过感测互电容和自电容节点处的电容的变化来进行触摸/悬停位置检测。 行和列导体包括开口，并且岛导体定位成与导体中的对应开口垂直对准。

公开(公告)号：US20150277649A1

公开(公告)日：2015-10-01

申请号：US14231408

申请日：2014-03-31

Applicant: STMICROELECTRONICS ASIA PACIFIC PTE LTD

Inventor： Kien Beng TAN

IPC: G06F3/041 ,  G06F3/0488

CPC classification number: G06F3/0416 ,  G06F1/1694 ,  G06F3/0488 ,  G06F3/04883 ,  G06F2203/04108

Abstract: According to one embodiment of the present disclosure, a touch controller is adapted to be coupled to a touch screen and to a motion sensor. The touch controller is operable in response to a signal from the motion sensor indicating a first motion to switch from a hover event sensing mode of operation to a gesture event sensing mode of operation. In one embodiment, the touch controller is operable in the hover event sensing mode of operation to detect a first hover event and is thereafter operable, in response to the signal from the motion sensor indicating a first motion has occurred, to switch to the gesture event sensing mode of operation and detect a first gesture event.

Abstract translation: 根据本公开的一个实施例，触摸控制器适于耦合到触摸屏和运动传感器。 触摸控制器可操作以响应于来自运动传感器的信号，指示从悬停事件感测操作模式切换到手势事件感测操作模式的第一运动。 在一个实施例中，触摸控制器可操作在悬停事件感测操作模式中，以检测第一悬停事件，此后可响应于来自运动传感器的指示已经发生第一动作的信号而切换到手势事件 感测操作模式并且检测第一手势事件。

公开(公告)号：US20150277587A1

公开(公告)日：2015-10-01

申请号：US14231360

申请日：2014-03-31

Applicant: STMICROELECTRONICS ASIA PACIFIC PTE LTD

Inventor： Praveesh CHANDRAN ,  Ravi BHATIA

IPC: G06F3/038 ,  G06F21/44 ,  G09G5/12 ,  G06F3/0354 ,  G06F3/041

CPC classification number: G06F21/44 ,  G06F3/03545 ,  G06F3/0383 ,  G06F3/0416 ,  G06F21/445 ,  G06F2203/0384 ,  G09G5/12 ,  G09G2354/00

Abstract: A method of pairing an intelligent input device with an electronic device includes transmitting a start pairing identifier and receiving a unique identifier that identifies the intelligent input device. The method further includes authenticating the unique identifier using authentication information stored in the electronic device and transmitting a pairing successful identifier responsive to the unique identifier being authenticated to thereby pair the intelligent input device and the electronic device.

Abstract translation: 将智能输入设备与电子设备配对的方法包括：发送开始配对标识符并接收识别智能输入设备的唯一标识符。 该方法还包括使用存储在电子设备中的认证信息来认证唯一标识符，并响应于被认证的唯一标识符发送配对成功标识符，从而配对智能输入设备和电子设备。

公开(公告)号：US09148311B2

公开(公告)日：2015-09-29

申请号：US13284879

申请日：2011-10-29

Applicant: Muralidhar Karthik ,  George A. Vlantis

Inventor： Muralidhar Karthik ,  George A. Vlantis

IPC: H04K1/10 ,  H04L25/02 ,  H04L25/03 ,  H04L27/26

CPC classification number: H04L25/022 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/03821 ,  H04L27/2601

Abstract: In an embodiment, a channel estimator includes first, second, and third stages. The first stage is configurable to generate a first observation scalar for a first communication path of a first communication channel, and the second stage is configurable to generate a second observation scalar for a first communication path of a second communication channel. And the third stage is configurable to generate channel-estimation coefficients in response to the first and second observation scalars. For example, such a channel estimator may use a recursive algorithm, such as a Vector State Scalar Observation (VSSO) Kalman algorithm, to estimate the responses of channels over which propagate simultaneous orthogonal-frequency-division-multiplexed (OFDM) signals (e.g., MIMO-OFDM signals) that suffer from inter-carrier interference (ICI) due to Doppler spread. Such a channel estimator may estimate the channel responses more accurately, more efficiently, with a less-complex algorithm, and with less-complex software or circuitry, than conventional channel estimators.

Abstract translation: 在一个实施例中，信道估计器包括第一，第二和第三阶段。 第一级可配置为生成第一通信信道的第一通信路径的第一观察标量，并且第二级可配置为生成第二通信信道的第一通信路径的第二观察标量。 并且第三阶段可配置为响应于第一和第二观测标量产生信道估计系数。 例如，这样的信道估计器可以使用诸如矢量状态标量观测（VSSO）卡尔曼算法的递归算法来估计传播的同时正交频分复用（OFDM）信号（例如， MIMO-OFDM信号），其由于多普勒扩展而受到载波间干扰（ICI）的影响。 这样的信道估计器可以比传统的信道估计器更精确地，更有效地利用较不复杂的算法和不太复杂的软件或电路来估计信道响应。

公开(公告)号：US20150268757A1

公开(公告)日：2015-09-24

申请号：US14218079

申请日：2014-03-18

Applicant: STMICROELECTRONICS ASIA PACIFIC PTE LTD

Inventor： Praveesh Chandran

IPC: G06F3/044 ,  G06F1/16

CPC classification number: G06F3/044 ,  G06F2203/04111

Abstract: A capacitive sensing structure comprises a plurality of first sensors electrically coupled to each other in a first direction, each first sensor comprising: a first arm extending along the first direction, and a second arm extending along a second direction perpendicular to the first direction and bisecting the first arm to form open regions at least partially defined by the first and second arm; a plurality of second sensors electrically coupled to each other in the second direction, each second sensor comprising: a first arm extending along the second direction, and a second arm extending along the first direction and bisecting the first arm to form open regions at least partially defined by the first and second arm; and a plurality of single electrically conductive and electrically floating structures, each disposed within open regions of adjacent first and second sensors.

Abstract translation: 电容感测结构包括在第一方向上彼此电耦合的多个第一传感器，每个第一传感器包括：沿第一方向延伸的第一臂和沿垂直于第一方向的第二方向延伸的第二臂， 所述第一臂形成至少部分地由所述第一臂和所述第二臂限定的开放区域; 多个第二传感器在第二方向上彼此电耦合，每个第二传感器包括：沿着第二方向延伸的第一臂，以及沿第一方向延伸的第二臂，将第一臂平分，以至少部分地形成开放区域 由第一和第二臂限定; 以及多个单个导电和电浮置结构，每个结构设置在相邻的第一和第二传感器的开放区域内。

公开(公告)号：US20150256330A1

公开(公告)日：2015-09-10

申请号：US14199510

申请日：2014-03-06

Applicant: STMICROELECTRONICS ASIA PACIFIC PTE LTD

Inventor： Leonard Liviu DINU ,  Chee Weng CHEONG

IPC: H04L7/033 ,  G06F3/0354 ,  H04L7/00 ,  G06F3/041

CPC classification number: G06F3/03545 ,  G06F3/041 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/0384 ,  H03L7/00

Abstract: A system and method for compensating for detected phase errors during communications between synchronized devices. In an embodiment, the two devices may be a touch screen device and a synchronized stylus device. To this end, the touch screen device includes a controller configured to receive data signals from the stylus at specific time intervals. The touch screen device generates an internal control signal for receiving the incoming data signals at an expected frequency. The touch screen device further includes circuitry for measuring differences in the time a data signal is actually received against when the data signal was expected to be received and determines a time difference (e.g., a phase error). Then, the internal control signal may be adjusted to compensate for the accumulated phase error. Such a measurement and compensation helps ensure that communications remain in synchronization without having to reestablish synchronization through a cumbersome synchronization process.

Abstract translation: 用于补偿同步设备之间通信期间检测到的相位误差的系统和方法。 在一个实施例中，两个设备可以是触摸屏设备和同步的触笔设备。 为此，触摸屏设备包括被配置为以特定时间间隔从触控笔接收数据信号的控制器。 触摸屏设备产生用于以预期频率接收输入数据信号的内部控制信号。 触摸屏设备还包括用于测量当数据信号被预期接收时实际接收数据信号的时间差异并确定时间差（例如，相位误差）的电路。 然后，可以调整内部控制信号以补偿累积的相位误差。 这样的测量和补偿有助于确保通信保持同步，而无需通过繁琐的同步过程重新建立同步。